The Puducherry police stepped up security across the city following the twin blasts on the Bangalore-Guwahati Express at the Chennai Central station.
The Director General of Police P. Kamraj issued an order to the effect.
Passengers at the Puducherry railway station and the bus stand were frisked.
The Puducherry police put up pickets at the Union Territory’s border areas checking incoming and outgoing vehicles.
Police personnel patrolled the streets, markets and public areas throughout the day.
“At the railway station and the bus stand, the bomb squads were deployed. We have mobilised all our personnel for carrying out security checks. The current arrangements will continue for the next two to three days and till there is some breakthrough in the Chennai case,” said Superintendent of Police (North) Praveen Kumar Tripathi.